Mobile Device Management?
If it is a corporate owned device, why weren't they using some MDM software to manage the device? MobileIron has an unlock command & I'm pretty sure that their competitors would have the same (a quick google shows that AirWatch and Citrix XenMobile do, haven't researched more).
The fact that the San Bernadino county were either too cheap or incompetent to manage their mobile devices effectively shouldn't be the cause of Apple having to undermine future iOS device sales by breaking the security of their devices.